cosis.dk
Last scanned: 2026-08-28 00:50:54  ·  632ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   52ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   66ms
IPTTLPTRASNISP / OrgCIDRCountryCity
87.73.109.195 3600s ip1.c232.ksv340.cust.comxnet.dk AS15516 DKTV A/S 87.72.0.0/15 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   55ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s smtp.cosis.dk 87.73.109.195 ip1.c232.ksv340.cust.comxnet.dk AS15516 DKTV A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   163ms
TXT Record
v=spf1 ip4:87.73.109.194 ip4:87.73.109.195 -all
✉️ SPF
PolicyRecord (cosis.dk)
-all (hard fail) v=spf1 ip4:87.73.109.194 ip4:87.73.109.195 -all
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records1 records   49ms
FlagsTagValue
128 issue letsencrypt.org
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC99ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081101
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
52ms
A
66ms
MX
55ms
AAAA
57ms
TXT
163ms
CAA
49ms
HTTPS
49ms
TLSA
66ms
SOA
0ms
MTA-STS
59ms
DNSSEC
99ms
SRV
61ms
Total
632ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 00:50:54 632ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-11 04:37:41 2405ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-17 13:04:09 1878ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 22:43:48 1509ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 22:31:04 646ms 2 NS 1 A 1 MX 🔒 Secure View
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